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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2509.10360 |
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| _version_ | 1866917229465960448 |
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| author | Zahn, Jochen |
| author_facet | Zahn, Jochen |
| contents | We study scalar (not necessarily conformal) quantum fields on self-similar spacetimes. It is shown that in states respecting the self-similarity the expectation value of the stress tensor gives rise to a Lyapunov exponent $ω_q = 2$, with a leading coefficient which is state-independent and geometric. Three examples for states respecting self-similarity are presented. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_10360 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum fields on self-similar spacetimes Zahn, Jochen General Relativity and Quantum Cosmology We study scalar (not necessarily conformal) quantum fields on self-similar spacetimes. It is shown that in states respecting the self-similarity the expectation value of the stress tensor gives rise to a Lyapunov exponent $ω_q = 2$, with a leading coefficient which is state-independent and geometric. Three examples for states respecting self-similarity are presented. |
| title | Quantum fields on self-similar spacetimes |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2509.10360 |